Summary of Significant Accounting Policies - Summary of estimated useful lives of assets (Details)	12 Months Ended
Mar. 31, 2021
Automobiles
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years
Software
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful lives	Lesser of lease term or useful life (generally 6 - 7 years)

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 35
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68071081&loc=d3e1205-110223

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790

Name:	us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration